Currency detectors



Dec. 1, 1964 J. CARLSON ETAL CURRENCY DETECTORS 1l Sheets-Sheet l Filed Dec. l. 1960 INVENToRs Lm/0 ,A naso/v 6L /FFo/Qo 70,4 M5

Dec. l, 1964 L. J. CARLSON ETAL CURRENCY DETECTORS 11 Sheets-Sheet 2 Filed Dec. l, 1960 INVENToRs m ro .A CARAJO/v CL /FFoPo ,4o/m45 De@ l, 1964 1 J. CARLSON ETAL 3,159,277

CURRENCY DETECTORS 11 Sheets-Sheet 3 Filed DSC. l, 1960 ai @VN QQN mmm..

INVENTORS Loro J. Ansa/v CUF/roep 5. ADA/ws www.,

Dec- 1, 1964 L. J. CARLSON ETAL 3,159,277

CURRENCY DETECTORS 11 Sheets-Sheet 4 Filed Dec. l. 1960 b4 @IATT'K Dec. 1, 1964 J. CARLSON ETAL 3,159,277

CURRENCY DETECTORS ll Sheets-Sheet 5 Filed Dec. l. 1960 INVENToRs Loro J. CARLSON CL/Ff'oea AOA/vrs 5f y? Arr'K Dec. 1, 1964 l.. .1. cARLsoN ETAL 3,159,277

CURRENCY nETEcToRs LLOYD J. CARLSON CUF/roza 6. AOA/ws Seau 'm7, ATT'K l.. J. CARLSON ETAL 3,159,277

Dec. 1, 1964 CURRENCY DETECTORS Filed Dec. l, 1960 l1 Sheets-Sheet 8 man INVENroRs L MYDJ. CneLso/v CUN-'020 ADAMS A 7' r 'K Dec. 1, 1964 1 ,.1. CARLSON ETAL 3,159,277

CURRENCY DETECTORS 1l Sheets-Sheet 9 Filed Dec. l. 1960 INVENTOR:

Loro J. CA2/.50N GL/FFoep ADAM.:

DeC- 1, 1964 l.. J. CARLSON ETAL 3,159,277

CURRENCY DETECTORS 11 Sheets-Sheet 10 Filed DeC. l, 1,960

L. J. CARLSON ETAL 3,159,277

CURRENCY DETEcToRs 11 Sheets-Sheet 1l Dec. 1, 1964 Filed Deo. l, 1960 United States PatentA ice maar?? Patented Dec. I, 1961i- 3,159,277. CURRENCY DETECIGRS Lloyd 5. Carlson and Cliord B'.- Adams, lielleiontain Neighbors, Mo., assignors-to National Reectors, Inc.,

t. Louis, Mo., a corporation, of Missonri Filed Dec, 1, 196i), Ser.V No. 73,062 1 Gaim. (Ci. 2G9--73) This invention relates to improvements in currency detectors. More particularly, this invention relates to improvements in methods and apparatus for identifying authentic paper currency.

It is therefore an object of the present invention to provide an improved method and apparatus for identifying authentic paper currency.

In the operation of apparatus for identifying authentic paper currency, it is customary to place a bill, wholly or partly, within a tray, or slot and then to move that tray or to push a button. This can require the use of both of the patrons hands, and it would be desirable to provide apparatus for identifying authenticy paper currency which could easily be operatedwith justone hand. The present invention provides such apparatus; and it is therefore an object of the present inventionl to provide an apparatus for identifying authentic authentic. paper currency which can easily be operated with just .onehand rl`he present invention causes a bill to interrupt a light beam as the leading edge of that bill passes through a slot, and the interruption of that light beam causes a billtransporting device to grip the bill and move it forwardly. This is desirable because the patron need only insert the leading edge ofthe bill into a slot and neednot move a tray or push a button. because it keepspatrons from pushing the leading edges of inserted bills against a stop within the bill-.transporting device and thereby causing those leading edges to crumple or Wrinkle. It is therefore an object of the present invention to provide apparatus for identifying authentic paper. currency which uses a light beam that is interrupted .by the leading edge of an inserted bill to start the operation of that apparatus.

If an inserted bill is found to be unacceptable, that bill should be returned to the patron. As that bill is returned to the patron by the bill-transporting device, it will again intercept the light beam; and that second interception of the light beam must not be permitted to start the bill moving in the forward direction again. The present invention keeps the second interception of the light beam from causing the bill to start moving in theforward direction again; and it is therefore an object of the present invention to provide apparatus for identifying authentic paper currency wherein interruption of a light beam starts a bill moving` in the forward direction but wherein interruption of 'that light beam as the bill moves in the reverse direction will not cause that bill to start moving in the forward direction again.

Other and further objects yand advantages of the presentinvention should become apparent from an examination of the drawing and accompanying description.

In the drawing and accompanying description, a preferred embodiment of the present invention is shown and described but it is to be understood that the drawing and accompanying description are for the purpose of illustration only and do not limit the invention and that the invention will be dened by the appended claims.

In the drawing, FIG. 1 is a broken, plan ViewV of one embodiment of bill-transporting device that is made in accordance with the principles and teachings of the present invention,

FIG. 2 is a broken, side elevational view of the embodiment of bill-transporting device shown in FIG. 1,

FIG. 3 is a broken, sectional view through the em- Furthermore, this is desirablebodiment of bill-transporting ydevice shown in FIG. l, and it is taken along the planeindicated by the line 3-3 in FIG. l,

FIG. 4 is a sectional viewof a few of the componentsA of FIG. 3, it is taken along the plane indicated by the line 3 3 in FIG. l, and it` showsv thefshaft-carrying bracketof FIG. 3 in lowered position,

FIG. 5 is a broken, sectional view through the. embodiment of bill-transporting device` shown inFIG. 1, and it is taken Valong the plane indicated by the line S-S in FIG. l,

FIG. 6 is a sectional View, on a very large scale, through the embodiment of bill-transportingV device shown in FIG. l, and it is taken along the plane indicated bythe line 6--6 in FIG. 5,

FIG. 7 is a side elevational View of the` lowervplaten and associated parts used in the embodiment of billtransporting device shownv in FIG. l,

FIG. 8 is a bottom view of the platen andl associatedv parts shown in FIG. 7,

FIG. 9 lisa -sectional view through the embodiment of.

bill-transporting device shown` in FIG. l, and it is taken along the plane indicated by theV line v9.-9.in FIG. 1,

FIG. 10 is a sectional vviewthrough the embodiment of.

bill-transporting device-shown vin FIG. 1, and it is taken along the broken plane indicated by the line 1li-10, in FIG. 1,

FIG. 11 is a plan view, on an enlarged-scale, through the-bracket which holds the mountingfor thel magnetic head Vof the embodiment of bill-transporting device shown.

embodiment of bill-transporting. device shown in FIG. 1, k

FIG. `14 is a sectional view, ona larger scale, through part kof the embodiment vof Vbill-transporting: device shownY in FIG. l, and it is taken alongthe plane indicated by.

the line 14-14 in FIG. 1,

FIG. 15 isa sectionalview, on the scale of FIG. 14,v and it is taken along. the plane indicated-by. theline 15-15 in FIG. 1,

FIG. 16 is a side elevational viewofa J-shaped bracketused in the embodiment of bill-transporting-deviceshownin FIG. 1,

FIG. 17 is a partially-sectionedside viewfof the opposite sides of the platens OfFIG. 2, and itsshows-the switches mounted yon those. platens,

FIG. 18 is a schematic. diagram ofpartof the electricalv circuit for the bill-transporting. device shown inFIG. 1,

FIG. 19 is a schematic diagram ofa further part of the electrical'circuitffor the bill-transporting device `shown `in-Y FIG. 1,

FIG.- 20 is a front view of the front plate of the device of FIG. 1 when the Abill-supporting,platfornrisremoved,

FIG. 21 is a View, on a larger-scale, of another lampl and light-sensitive element, and

FIG. 22is a schematic diagram of av circuit incorporating the lamp and light-sensitive element of FIG. 21.

Referring to the drawingin-deta'il, the numeral 3i) denotes a base for one embodiment of currency identification device thatis made in accordancewith the principles..

and teachings of the present invention. That base is Vgenerally rectangular in plan, andit has a stifening ilange that extends downwardly from the'sides and ends thereof.

That base has a large opening 31 therein, and that opening begins at a point about one third-ofthe way toward the rear of that-base, and that opening extends almost all the way to the rear of that base.

The numeral 32 denotes a verticallly-directed plate which has a horizontally-directed ilange at the bottom Y ly by FIG. 9.

plate 32. Y The closed end of the U-shaped plate 34 rests l on the top Yofthe plate 32, and the Varms of that plate project upwardly from the plate 32. A front plate 36 overlies the front face of the plate 34, `and also projects downwardly beyond the bottom of that plate to overlie the frontportion of the upper part of the plate 32. A horizontally-directed opening 3S is formed in the plate 36, and that opening is wide enough to accommodate a dollar bill when that bill is inserted lengthwise through that opening. Fasteners 40, shown in the .forrn of machine screws, pass through openings adjacent theV bottorn of the front plate 36 and seat in threaded openings adjacent the upper end of the plate 32.

The numeral 42 denotes the rear plate for the embodiment'of currency identification device shown by FIG. l,

Y an ear 49, and that ear is suitably secured to the platen and thatV plate has a horizontally-directed flange whichVV acts as -a foot. VAs indicated particularly by FIG. 2, the iiange on the plate 42 is secured to the top of the base 30. The rear plate 42 is parallel to the plate 32, and it is register with that plate. A U-shaped bracket 44 is suitably secured to the front face of the rear plate 42; and spot welds constitute a convenient way of securing that bracket to that plate. The upper right hand corner of the rear plate 42 is cut-away at 43,;as shown particular'- The'numeral Si) generally denotes a `horizontally-directed platen which is disposed above and which is parallel to the base 3G. That platen has ya downwardly-extending wall portion 52 at the Vfront thereof; and that Wall portion has a vertical iiangerii yat oneside thereof, has a centrallylocated rectangular opening 58 extending upwardly from the lower edge thereof, and has a vertical ange 62 at the other side thereof. VThe flanges 54 and 62 act to stiften the Wall portion 52. The platen 59 has a flange 64 which extends downwardly from one ofthe elongated sides thereof, and that flange is Vcontiguous with the vertical An elongated opening de is formed 82 and Y8d, respectively in the platen 50, and that opening is parallel to the frange 64. An elongated slot 68 is formed in the platen Sti,

Y. and that slot is formed at the longitudinally-extending cen-y ter line of that platen. Y As indicated particularly by FIG. 8, the slot 68 is shorter than the opening 65. An open- Y ingl 70 is provided in the platen 5t) near the front of that platen; and that opening is in registerwith the elongated slot 68.' That opening is wider than the slot 6%, and it is intermediate Vthat yslot and the Wall portion 52. A sec-V i ond; elongated opening 72 is provided in the platen Sil; and that opening is parallel to, land has the saine length as, the opening 66. Theropeningsd and 72 are disposedY on opposite sides of the elongated slot 5S. A ange 74 is formed at the other elongated side of theplaten Si?,

audit extends almost alltherway to the rear edge of theV platen '50. The flanges 64 and 74 reinforce and stiden the platen Sil. A rectangular opening 76isf-ormed adjacent the rearedge ofthe platen Si), and that opening is intermediate the yflange 64 'and the,V elongated opening 66. VA'V similar opening 78 is provided in the' platen 59 adjacent the rear edge thereof, and that opening is intermediatethe elongated opening 72 and the flange 7d. The

platen ,50 terminates ina downwardly-inclined trailing;l

edge Si). A notch 821s formed in vthe trailingcdge of the platen V50, andrthat notch extends inwardly beyondV thedoWnWard1y-inclined trailing edge 8l) of that platen.

Similarly, a notch 84 is formed-in the trailing edge of the platen 50, .and that notchextends inwardly beyond fthe downwardly-inclined trailing edge Sil.

An opening 5S is formedin the platen Se adjacent the Y front end of thatrplaten. That opening is closely adjacent the Wall portion 52, 4and it is circular in plan.

A Vertical plate ed, which has a toot-like flange, issecured to the lower'face ofthe platen Sllby that ange.

Spot welds can be :used-to secu-re that footdike flange to the lower'face of that platen. In addition, the plate i6 has an ear 47, and that ear willV be suitably secured to the platen Sil. Similarly, a vertical plate 48, which has a foot-like flange, is secured to the lower face of the platen 5@ by that foot-like iiange. In addition, the plate 48 has 59. The ears 47am-d 4% arerspaced forwardly ofthe forward endsl of the' foot-likeV anges on the plates 45 and 4S, respectively; and thoseV ears rigidly secure the forward endsl of tho-se plates to the platen 50. The footlike'anges on the plates 46 and 48, are shorter than those plates, as indicated particularly by lFlG.V 8. The plates identi 48 are parallel to each other, and Vthey abut the adjacent edges of the elongated openings 66 and 72. The

plates 45 and 48 are shorter than the elongated openings Y de and 72; and those plates terminate short of the notches A short vertical plate 7S has afoot 77; and that footV is secured to the platen 5G by a fastener, such as a Y has a foot 81; and that foot is secured to the,y platen Sil.v lby a fastener, such as a -rnachine screw. The plate'i is alined with thevertical plate 46; but it is spaced a short distance rearwardly of the trailing edge of that plate.

The plate 79 Vextends to the rear edge of the platen Sil.`

The space deined by the confronting edges of the plates 48 and 75 is in register with' the space defined by the con-Vv fronting edges of the plates'dtv and 79.

A securing Vtlange 86 is provided lat the lfront of the plate do, and a securing flange S8 is provided at the front of the plate 4S; As indicated particularly by FIG. 8, those securing flanges are suitably secured to therear face ofthe vertical wall portion 52 of the platen 5%. The i ,vertical plates' and Y79 yare secured to the U=shaped bracket 4d on the rear plate 42, as by fasteners 99; Vand Y since the plates '75 and '79 are tixedly secured to the platen Sarthe securement of those plates to the bracket de fixedlysecures that platen Se. to the rear plate 42. VThe wall portion 52 at the front of the platen Si) is rigidly secured to the front plate 3o and to the U -shaped plate 34 bysuitable fasteners. v

The numeral 94 generally denotes -a horizontal platen` Ythat is substantially identical to the horizontal platen ,Stiff The vplaten 94 has a wall portionY 96 at the front thereof; Y but insteadof extending VVdownwardly from the`plane of Y that platen, that' wall portion extends upwardlyfr'orn that plane. lThe Wall portion'` 9e has' a vertical flange 93 at `one side thereof, has a centrally-located rectangular operi-rl ing lo@ Yextending Vdownwardly from the uppery Yedge thereof, and has a lvertical iiange` M32 at the other sideA VThe fianges`98 and M2 act to stiiien the wall Y portion 960 platen 9e. ,The platen 94 a tlange liltifV which eatendsupwardly from one of the elongated sides .Y

thereof.

thereof; Vand that flange is'contigdouspv'with the vertical flange 93. T he flange 104 extends toward Vthe rear ofr the platen 94, but` it terr'ninatesat aV point indicated byA` f the numeral led. An elongatedopening' iodidentic'al Vto theelongated opening 72, is formed in thefplaten .794; Vand that opening will beset in register withjthe elongatedV Y Y Vopening do. An elongatedjslot Illrwhich; is identicalv to thelelongated slot 68 inthe platen 50, Ywilltbe, seti in register with that .elongated Vslot. An opening Irllvis'r'V proyided Vin the platen 94; and/that openingis identical.V4 Y 1 to,'and will be set in register with, the opening 7u in :the Y platen Sti. 'AV second el-ongated'opening 112 is formed in the platen i941', and lthat opening is identical to the 1 opening 66; and that opening will be set in register with the opening 72 in the platen 59. A flange 114 is formed at the other elongated side of the platen 94, and that flange extends upwardly to the level of the upper edge of the flange 104. That flange is contiguous with the vertical flange 102 on the wall portion S16,A and it extends almost all the way -to the rear edge of the platen 94. The lianges 1114 and 114 reinforce and stiffen the platen 94. Openings 116 and 113 `are provided in the platen 94 adjacent the rear thereof, and those openings are identical to the openings 76 and 7S in the platen Si). The opening 116 is in register with the opening 76 and the opening 118 is in register with the opening 78. The platen 94 is provided with an upwardly-inclined trailing edge 120; and notches 122 and 124 extend inwardly through that trailing edge and into the horizontally-directed portion of the platen 94.

An opening 123 is formed in the platen 94 adjacent the front end of that platen. That opening is closely adjacent the wall portion 96, and it is circular in plan.

The numeral 126 denotes a vertical plate which has a foot-like ange, and that flange is secured to the upper face of the platen 94. That plate also has an ear and a securing flange, not shown, that are identical to the ear 49 and the securing flange 8S of the vertical plate The numeral 130 denotes a second Vertical plate which has a foot-like ange; and that flange also is secured to the upper face of the platen 94. That plate has an ear and a securing flange, not shown, that are identical to the ear 47 and the securing flange 86 of the Vertical plate 46. The vertical plates 126 and 130 are disposed in parallel to each other, and they abut the adjacent edges of the elongated openings 106 and 112, respectively, in the platen 94. The vertical plates 126 and 130 are shorter than the elongated openings 1116 and 112; and those plates terminate short of the notches 122 and 124, respectively.

A short vertical plate 128 has a foot formed on it; and that foot is secured to the platen 94 by a faste-ner, such as a machine screw. The plate 128 is alined with the vertical plate 126; but it is spaced a short distance rearwardly of the trailing edge of that plate. The plate 128 extends to the rear edge of the platen 94. A short vertical plate 132 has a foot formed on it; and that foot is secured to vthe platen 94 by a fastener, such as a machine screw. The plate 132 is alined with the vertical plate 130; but it is spaced a short distance rearwardly of the trailing edge of that plate. The plate 132 extends to the rear edge of the platen 94. The space defined by the confronting edges of the plates 126 and 123 is in register with the space defined by the confronting edges of the plates 130 and 132.

The securing flanges at the leading edges of the vertical plates 126 and 13) are suitably secured to the rear face of the vertical wall portion 96 of the platen 94. That vertical wall portion is suitably secured to the front plate 36 and to the arms of the U-shaped plate 34 by suitable fasteners; and hence the platen 94 and the vertical plates 126 and 130 thereon are tixedly secured to the front plate 36. Fasteners 135 secure the short vertical plates `12S and 132 to a U-shaped bracket 134 that is spot welded to the front face of the rear plate 42. In this way the platen 94 and the short vertical plates 123 and 132 thereon are fixedly secured to the rear plate 42.

The platens 50 and 94 fixedly and rigidly hold the upper end of the rear plate 42 in spaced relation to the front plate 36. In doing so, they coact with the base 30 to provide a light-weight but rigid frame for the billtransporting device of FlG. l. To minimize the flow of magneto-electric currents through that frame, the platens or the front plate or the rear plate or the base should be made of a non-magnetic material.

The rear plate 42 has a generally H-shaped opening 136 therein. However, the cross bar of that opening extends outwardly beyond the vertical portions of that opening, as shown particularly by FIG. 13. That cross bar is dimensioned to accommodate an inserted bill when that bill is moved through that cross bar in a direction which is parallel to the elongated axis of that bill. rPhe cross bar of the H-'shaped opening 136 in the rear plate 42 is in direct alinement with the opening 38 in the front plate 36; and that cross bar and the opening 38 are in register with the space intermediate the 'upper surface of platen 50 and the lower surface of platen 94.

The numeral 138 denotes a guide plate which ismounted intermediate the upper surface of platen50 and the -lower surface of platen 94. That guide plate is as long as the platens 50 and 94, but it is much narrower. Specifically, the guide plate 138 is narrower than that portion of the platen 56 which is intermediate the elongated opening 72 and the harige 74. One of the elongated sides ofthe guide plate 138 is in register with that side of platen 50 which has the flange 74 thereon; 'and the other elongated side of that guide plate is spaced from the adjacent edge of the elongated opening 72. An 'opening 139 is'provided in the guide plate 133, and that opening is in register with the openings 78 and 118 in the. platens 50 and 94, respectively; all as shown by FIG. 10. A second guide plate 141i, which is identical to the guide plate 138, is also disposed intermediate the upper surface of vthe platen 56 and the lower surface of the platen 94. That guide plate has one of the elongated sides thereof in register with that side of the platen 50 which has the horizontal iiange 64 thereon, and that guide plate has the other elongated side thereof spaced from the fopening 66. The confronting elongated sides of the guide plates 138 and 140 are spaced apart a distance -just slightly greater than the height of a bill. The guide plate 140 has an opening 141 therein, and that opening is in register with the openings 76 and 120 in the platens 50 and 94, respectively; all as shown by FIG. 10.

The space between the confronting edges of the vertical plates 126 and 128 and the space between the confronting edges of the vertical plates 130 and 132 are spanned by a U-shaped plate 146. That U-shaped plate abutsv the confronting faces of the plates 126 and 130 and also abuts thefaces of the plates`123 and 132; andthat U- shaped plate is fixedly secured to those 'plates by fasteners, such as screws and nuts. That U-shaped plate helps hold the plate 128 `in alinernent with the plate 126 and helps hold the plate 132 in alinernent with the plate 130.

The space between the confronting edges of the plates 43 and 75 and the space between the confronting edges of the plates 46 and 79 are spanned by a heavy-walled gear housing 142; all as shown by FIG. 10. That gear housing abuts the confronting faces of the plates 48 and 46 and also abuts the faces of the plates 75 andv 79; and that gear housing is iixedly secured to those plates by fasteners, such as machine screws. That gear housing helps hold the plate in alinement with the plate 48 and helps hold the plate 79 in alinement with the plate 46. The sides of that gear housing have openings 143 therein, and the bottom of that housing'has an opening 144 therein.

The numeral 14S denotes a J-shap'ed bracket which has a frusto-triangular closed end; and the'short 'arm of that bracket is at the widest portion of that closed end. Similar J-shaped brackets are denoted by theV numerals 150, 152 and 154. Each of the J-shaped brackets 148, 159, 152 and 154 has horizontal slots 156 in the short arm thereof, and those slots are parallel, to the closed ends of those brackets.V The long'arrns of the J-shaped brackets 143, 1511, 152 and 154 have vertically-directed notches 158 therein, as shown particularly by'FIG. 16. The horizontal slots 156 in the short arms ofthe J-shaped brackets 148 and 15) accommodate the fasteners that secure the U-shaped plate 146 to the plates 126, 128, 13d and 132. The horizontal slots inthe short arms of the J-shaped brackets 152 and 154 accommodate the fasteners which secure the gear housing 142 to the plates e 'plieV numeral 19,1

46, 48, 75and 79. The horizontal slots 156 permit the J-shaped brackets 152 and 154 extend toward but terminate short of the lower surface of the platen 50. Suitable bushings 169 are mounted Within the notches 158 of the J-s'haped brackets 143, 150, 152 and 154; and the bushings 160 in the notches of J-shaped brackets 143 and l'rotatably support a shaft 162. Timing belt pulleys 164 are xedly secured to that shaft, and those pulleys will be in register with the elongated openings 106 and 112 in the platen 94. A spur gear 166 is xedly secured to one end of the shaft 162; and a ratchet-faced clutch member 168 is vsecured to the shaft 162 interkmediate the other end of that Vshaft and the bushing 160 which supports that other end of that shaft. A. ratchetfacedkr clutch member 176 rotates freely on the shaft 162.," and the ratchet-face of that clutch member confronts and can engage the ratchet face of the clutch member r168. A large diameter pulley 172 is mounted on and supported by the shaft 152, adjacent the said other end ofuthatv shaft; but that pulley is free to rotate relative to that shaft. A knurled hand wheel 174 is txedly secured to thesaid other end of the shaft 162, and that hand Wheel can be used to effect-rotation of the shaft Y 162 whenever desired. A helical spring 176 is telescoped Y the closed end of the bracket 1%. `Those springs bias f 194 rotatablyrmounted thereon, and those Vpulleys are in register with the elongated openings ed and 72 inthe platen Sil. v

The numeral 196 denotes a U-shaped bracket which xis disposed between the vertical plates 126 and 13d; and

that bracket is narrower than the space between those plates.4 A pivot 193 extends between and is supported by the vertical plates 126 andV 13th and that pivot extends through therarrns of the U-shaped bracket 1%. As a resuit, that bracket can rotate about that pivot ,and thus can rotate relative to the plates 126 and 131). A pivot 2699 extendsV between and is secured to the vertical plates 12e and 131i at a point above the top of the bracket 1%;

and springs'ZiS are wound around therpivot 198 and have the upper ends thereof bearing against the pivot 20@ while having the lower ends thereofbearingagainst the bracket 1% for rotation in the counter clockwise direction in FIGS. 3 and 4 and thus bias that bracket toward the lowered position shown by FIG. 4. VHowever, thoseV springs can yield to permit the U-shaped',

The leading edges of the U-shaperd brackets 191 and 1% are 'cut-away where those leading edges are adover the saidother end of the shaft162, and one end of that spring is seated in a socket in the clutch member 171)V While the otherend of that spring is seated in a socket in the large kdiameter pulley 172. That spring is wound in such a way that it will tend to wind tightly if the large diameter pulley 127 is held stationary while the shaft 162 rotates in the counter clockwise'direction in FIG. 2.

f Y vbushings 160 that are disposed within the vertical'notches 15S of the J-shaped brackets 152 and154. That shaft is located below the level of, and in vertical registry with, the shaft 162;'and that shaft extends through the openings 143 in the gear housing 142. The shaft 173 has timing belt pulleys 189 fixedly secured thereto, and thoseV pul- -leys are in register with the elongated openings 66 and 72 in the platen 50. A spur gear 182 is mounted on one jacent the openings 5S and 123. As a result light can pass uninterruptedly through the openings 5S and 123 through openings inthe vertical'plates'126 and 130; and

those openings are considerably larger than the diameter of the pivot 202. As a result, the U -shaped bracket 196 can rotate a limited number of degrees about thepivot Y f 195 without'rhaving the pivot 2&2 engage the openings The numeral l178 denotes a shaft which is held by the in the plates 126 and 131i. v

The bushings-which are carried by the U-shaped bracket the bracket 2de can have the -righthan'd edge of the botend of the shaft 178, and lthat gear meshes with the spur gear 166 on the one end of the shaft 162.V A worm wheelV Y 184 is mounted on Vthe Vshaft 178, and that gear is dis-V posed within the. gear housing 142. That Worm wheel meshes with, and is4 driven by, a worm gear.V 185 which is mounted on the shaft of a motor 188. That motorshaft is vertically directed, and it extends upwardlythrough the4 opening 144 inthe bottom of the gear housing V1412.V

The motorrlSS isrsuitably secured to, and it'depends downwardly from, the gear housing 142. That motor is long enough to extend down into the large opening 31 in thebase '30,but it is short enough so it does not entendV of the lower Vedges or" the flanges on I ably a two phase motor. A capacitorwb is connected inseries with the phase Winding'of motor 18S, and'that capacitoris mounted on a bracket' adjacent the motor l 138. 'I'hat bracket is secured to, andv ydepends downwardly from, the vertical plates 46 and 48. That bracket. also supports VK a multi-prong connector 195;*V yand the various electrical'components 'of the billtransporting.de-l

vice of FIG, l are connected to appropriateprongs of torn thereof abutting the closed end of bracket 196; as

shown by FIG. 3, or can have that righthand edge disn posed a short distance above that closed end, as shown i by FIG. 4. Whenever the bracketZiPd has the Vrighthand edge of the bottom thereofY disposed a'short distance above the closed end ofthe bracket 196, the springs Zt will move the bracket 1% into the lowered position shown -is then rotated ink the clockwise direction, the bracket 196will' be moved to theraised position shown by FIG. 3..

As a result, the bracket 2% can be used to eiect'raising oi the lefthand end of the bracket 1%, and thus to eect the raising ofthe pivot 2t2. The'Ufshapedrbracket 26.161,1 has an upwardly-projeeting arm 2G17 and that Yarm can be moved to the right in FIG. 4 to rockl the brackets 2%' and @einem thepositions shown lin FIG. 4 tothe posi.- tions shown! by E 3. r

up and down asthe brackets 206 and 196 raise land lower the pivot 2412. The pulleys ZM are mounted in register with the elongated openings V16d and .112 in the Vplaten 94. j

The nuinerall@ denotes a mounting bracket that is p secured to',- but is laterally spaced from, vthe yertical'platef 126;v and that mounting plate projects upwardly above the top of the plate 126. Ahorizontally-directed pivot 212 ris supported by the mounting bracket 210; and a lever 224 is rotatably mounted on that pivot. A connecting rod' 214- extends between the upwardly-extending arm 207 i of thebracket Ztldand the lower end of the lever 224; and pin joints 216 and 218 connect that rod with that upwardly-projectxngarm and with that lever, respectively. The connecting rod 214 extends to the 'rightbeyond the lower end of the lever 224, as shownA particularly by FIG. 2; and the right-hand end of that rod has an opening in which one end oa helical extension spring 222 is-hooked; The other end of that spring is hooked around a pin 220'which is secured to the mounting bracket 21th.

The lever 224 has a slot 226 in the upper end thereof, and that slot accommodates a pin which is carried by the plunger 228ofa solenoid 230. That solenoid is suitably secured to andsupported by the mounting bracket 216; and that solenoid can be energized to retract the plunger 22S and thereby rotate the lever 22d a distance inV the clockwise direction in FIG. 2. A switch'232`is suitably` secured to the mounting bracket 2li); and the actuator.' 234 of that switch extends into a hole in the connecting rod 214.

The'spring -222normally holds the connecting rod 214, theV lever 224, and the plunger 228ein the positions shown byFIG. 2;' and, in doing so, that spring normally holds the bracket 2% in the position shown by FIG. 3. This means thatunder normal conditions the spring causes theV bracket 206 to hold the bracket 196 and the pivot 2&2: in their raised positions. The force of the spring 222will'be overcome bythe solenoid 23d whenever the latter isenergized; and hence that solenoid can cause the bracket2tl6' to rotate to the position shown by FIG. 4. Asthat bracketso rotates, it will enable the springs S to lowerthebracket 196 and the pivot 202 to the positions shown by FIG. 4; The'energization of the solenoid 230will also cause the connecting rod 214 to move the actuator 234-far enough to close the contacts or" the normally-open switch 232.

The. numeral 236 -.denotesa bracket which is secured to, and which spans the space between, the vertical plates l2'fand 130. That bracket has downwardly depending legs238 which are spaced apart; and those legs have slots 249 therein. Thoseslots accommodate projections 243 on a mounting 242 for a magnetic head 244; and those slots and those projections guide the vertical movement'of that mounting. A helical compression spring 246 biases the mounting 242, and thus the magnetic head 244, downwardly relative to the bracket 236; and hence that-spring biases that head downwardly relative to the platen 94. However, the spring 246 can yield to permit upward movement of the mounting 242 and of the magnetic head 244. An adjusting screw 24S has the shank thereof passing through a threaded opening in the bracket 236, through the spring 246, and through an opening in the` mounting 242. A washeris secured to the lower end of the screw 248; and that washer prevents accidental separationof the mounting 242 from the screw 248. A nut 259 is carried byl the adjusting sciew- 248, and that nut can be used to lock that screw in position relative to the bracket 236. However that nut can be loosened to p ermit rotation, and thus vertical movement, of the screw 24S relative to the bracket 236. That vertical movement ixes the normal position of the magnetic head 244 relative to the platen 94.

The numeral 252 denotes a'socket which can receive a connector that will serve to connect the magnetic head 24d-*into a suitable circuit. That socket is mounted on the bracket 236, and it is connected to the magnetic head 244 by two short wires. Those wires are readily tlexible so they can permit movement of the magnetic head 244 relative to the platen 94.

The numeral 260 generally denotes a bracket that is L-shaped in configuration, as shown by FIG. 6. That brackethas a long horizontallydirected arm and has a short vertically-directed arm; and both of those arms have openings therein. The horizontally-directed arm also has leading and trailing edges 26d that incline upwardly from the plane of that arm. A hardened face plate 268 is suitably secured to the horizontally-directed arm of the bracket 2st); and that hardened face plate is strongly resistant to wear. That face plate underlies part of that horizontally-directed arm and also underlies the upwardly inclined leading and trailing edges 264.. That face plate also has a downwardly depending lip 266; and that lip will confront the innermost edge `of one. of,l the timing belts used-in the bill-transporting device of FlG. 1.

A number of'L-shaped brackets 260' are provided; and: the long arms of those brackets are secured to the platens'.A 94 and 5t), and the short arms of those brackets are secured to the vertical plates 126, 150, 46 and 48: As indicated particularly by FIG. l, the brackets 260 which. are secured to the platen Qd'are grouped in pairs that are' spaced along the length of that platen, and the bracketsof each pair are set opposite each other. Similarly, the brackets 26tl'which are secured to the platen 50 are: grouped in pairs that are spaced along the length 'of that: platen, andthe brackets of each pair are set opposite each other. However, the pairs of brackets 26@ which. are secured to the platen 94 are displaced from the pairs of brackets 26d which are secured to the platen 50, allas shown by FIG. 5.

The numeral27ll denotes timing belts which extend around and are supported by the timing belt'pulleys 204 and 164. The numeral 272 denotes timing beltswhichextendaround and are supported by the timing belt pul-l leys 194 'and-18d. The timing belts 27@ are mounted sov the ribs thereon engage and pass under the hardened :face plates 26S or the brackets 260 which are supported by the platen 9d. The timing belts 272 are mounted so theV ribs thereon engage andy pass over the hardened face plates 268 of the brackets 2d@ whichare supported by the platen Sil. The hardened face plates 268 of the brackets Zoll carried by the platen Sil dene a horizontally-directed plane, and the hardened face plates 268v of the brackets Zolly carried by the platen 94V define a second horizontally-delined plane; and the vertical dis tance between those two planes is less than twice the thickness of any or the timing belts 276 and 272. Asaresult, the timing belts 27d'and 272 must bow downwardly to pass under the hardened face plates 268 of the brackets 26@ secured to the platen 94 and must bowl upwardly to pass over the hardened face plates 268 ofthe brackets 26@ `securedto the platen 50. The downward and upward bowing of the timing belts will f alte-rnate and will force those belts to undulate as they move relativeV to theA platens 5@ and 9d. This undulation is Very` desirable because it recurrently forces the confrontingfaces ot the timing belts 270 and 272 into intimate engagement with a bill interposed between those facesf, If= desired, rollers could be used instead of the brackets 260. However, while rollers would reduce the frictional rforces applied vto the timing belts 27 il and 27 2,-those forces have not been'tound to be particularly objectionable.

The timing belts 27@ and 272 will be driven by the timing belt pulleys lo@ and l@ mounted on the shafts 162 and 278, respectively. The shaft 178 will be dij rectly driven by the motor 183, and the spur gears 132 and 266 will enable that shaftto drive the'shatt162. The gears 182 and 166 are important in keeping the belts 270' and 272'moving in synchrony with each other.

The numeral 274^denotesa switch that Vhas an arcuate actuator 276. That switch is secured to the platen 5@- adjacent-the front of that platen, and the actuator of4 that switch extends upwardly into the openings 72 and 112. In doing so, that actuator extends into the path of movement of any bill that is inserted within the billtransporting device of FIG. 1. The actuator 276 is inr-V mediately adjacent the belts 272 and 27u which are dis` posed within the openings 72 and i12, and hence the portion of the leading edge of the inserted bill which engages that actuator will be fully and completely supported by those belts. 'As a result, that portion of that leading edge will be able to resist any tendency to crum- Y ple or roll up as it engages and moves the actuator 276.

The actuator 276 extends toward the wall portions 52 and 96, respectively, of the platens Sli and 94; and, consequently, that actuator will be engaged and moved by an inserted billalmost as soon as the leading edge of that bill passes inwardly beyond those wall portions.

The numeral 278 denotes a switch that has an arcuate actuator 280. That switch is secured to the platenV 9d adjacent the front of that platen; and the actuator of that switch extendsdownwardly into the openings 96 and 66. ln doing so, that actuator extends into the path oi moves ment of any bill that is inserted within the bill-transporting device of FIG. l. The actuator 281i is immediately adjacent the belts 276 and 272 which are disposed within the openings ltand 66; and hence the portion of the leading edge of the inserted -bill which engages that actuator will be fully and completely supported by those belts. The actuator 280 extends toward the wall portions 52 and 96 of the platens andl 94 and kwill thus he engaged by an inserted bill almostas soon yas, the leading edge of that bill passes inwardly beyond those wall por-tions. The

i, actuator 276 `of the switch 27d and the actuator 280 of the switch 278 will be engaged `by an inserted bill at about the same time where thatY inserted bill is intact and the corners thereof are not folded. However, if a oornerrof the inserted'bill has been torn oil" or has been folded, oneV Yof those actuators will be engaged and moved before the other actuator is engaged and moved. To make certain that the presence of an inserted bill is sensed promptly, the switches 274 and 2,73v are connected in parallel, as shown by FIG. 1S. This means that a closed circuit will be established yalmost as soon as the inserted bill passes' inwardly beyond the Wall portions 52 and 94, respectively, of the platens Si) and 9d; and that closed circuit will Vbe establishedby one or the other or both of switches 274 and 27S. i Y

The numeral V282 denotes a switch that has an arcuate actuator 2874. That switch is secured to the Vplaten Sti about one quarter of the distance toward the rear of that platen, and the actuator 284 extends'upwardly into the openings 166 and 66. That actuator is immmediately adjacent the belts 27d and 272 which are disposed Within those openings, and those beltswill give full and complete support tothe leading edge of any inserted bill. The actuator 28d extends rearwardly; and that actuator -is thus,

in part at least, disposed rearwardly of the actuator 280. The numeral 286 denotes a switch that has an arcuate actuator 28S. That switch is secured to the platen 50st a pointabout one half of therdistance toward the rear of that platen, and the actuator 233 extends upwardly into the openings 112 and 72. vThat actuatoris'immediately n adjacent ythe belts 2276V and 272 which are disposed within those openings, and those beltsV willA give full and com- Y plete support lto the leading edge of any inserted bill. The

actuator 288 extends forwardly toward the front plate 36 j and an inserted-bill will engage that actuator while that bill isstill engaging and holding the actuators 276 and 280 of the switches 274 and' 273. Y'

The numeral 299 denotes a switch that has an arcuate 'I actuator 2%. That switch is secured to the platen 5d at a point whichV is just a little further toward the rear ofl that platen thanris theY point at which the switch 256 is wardlyfromv that switch. YThat actuator is immediately adjacent the belts 27h and 272 which are disposed within the openings'lt and 66, and-those Ybelts will give full 'ndr complete supportV to the leading edge; otjany inserted Y is f Y The numeral 294 denotes a switch that has an arcuate actuator 296. That switch is secured to the platen 5t] adjacent the rear of that platen, and the actuator'of that switch extends into the openings 106 and'66. The actuator 2% extends rearwardly toward the rear of the platen Sti, and it extends between the shafts 162and 17S. That actuator is immediately adjacent the belts 271B and 272 which are disposedwithin the openings-,186 and 66, and those belts will give full and complete support to the leading edge of any inserted bill. Y'

The numeral 29S denotes a switch that has an arcuateV actuator 390. That switch is secured to the platen 94 adjacent the rear of that platen, and the actuator of*k that Y switch extendsinto the openings 112 and 72. The actuator 39h extends rearwardly toward the rear of the platen 94, and it extends between the shafts 162 and E78. That actuator is immediately. adjacent the beltsr27l and 272 which are disposed within theopenings 112 and'72, and

those belts will give full and complete support to the leading edge of any inserted bill. Y

Theractuators 296 and 30) are opposite each other, and they will be engaged by the leading edge of an inserted bill at'about the same time. Further, those actuators extend as close to the rear edges of theVpla-tens 5@ and 94 as is practicable; and hence an inserted bill will hold those actuators in moved position until that bill has passed almost all the way through the opening 136 in the rearV Stops 3%' arev provided for some of the switch actuators,.

and those'stops will be secured to the vertical plates 46, 48, 126 and i3@ by machine screws or otherV suitable fasteners. Those stops will limit the extent to which those actuatorsV project through the, openings y66, 72, 166 and 112. Those stops have slots 304 therein, and those vslots' permit adjustments in the positions of those stops relative to the vertical plates 66, '72, 166 andllZ. As a result,

those stops facilitate the making of -adjustmentsin the Vnormal positions of the switch actuators.

The numeral 3% denotes a bearing bracket which is Vsecured to thefplaten'94 adjacent the rear of that platen. That bracket is intermediate the opening 11S and the upwardly inclined `trailing edgeV 120 of that platen. That bearing bracket suitably lsupports a bushing 310 which accommodates and rotatably supportsV one end of a shaft` Edd. A bushing 312 is carried bygth'egvertical plate 12S,

and .that bushing rotatably supports the other end ofthe shaft 3dS. That shaft has soft-faced rollers 314 iixedly,

secured thereto, and those rollers rotate with that shaft.

The V,sott-faced rollers are immediately adjacent the outer i' faces of the verticalv plates'ir26 and 13h; and parts of'those rollers extendintotheopening 36. small diameter pulley 336.V is lixedly' secured to and rotatable' with the secured to that platen.v The actuator 292 extends upwardly into 4the openings 136 .and 66, and it extends rearsh'aitrtl, and that pulley is in alinemen'tV with the largeV diameter-172 that is loosely lmounted on and carried by the sha-ft l62.

small diameter pulley M6.

Y The vertical lplates' andV 79 support bushings 3i?, andthoseY bushings rotatably support a shaft 319.7",That

shaft isrlocated below the level of, ,Y and is infvertical .Y registry with, the shaft 3h87.' vSoft-faced rollers 321 are rollers engage and are drivenY oy thesoft-facedV rollers4 secured toY and rotatable with the shaft 319; and those die ,which rotatewith the shaft SSQ VTheV diameters ot the soft-'faced rollers 314 and 321 are v`so large .that

` An endless belt 313 extends around and. is supported'by the large diameter pulley :W2 and bythe t 3 the confronting faces of those rollers always abut and slightly deform each other.

The numeral 320 denotes a U-shaped bracket which is disposed between, and is secured to, the plates' 46 and`48; andthat bracket is disposed adjacent the front ends of those plates. A pivot 322 is supported by that bracket, and a carrier 323 is rotatably mounted on that pivot. That carrier is generally U-shaped; and that carrier supports a pivot 324. A soft-faced roller 326 is rotatably mounted'on that pivot, and. that soft-faced roller can bemoved toward and 'away from the bottom face of the magnetic head 244'by appropriate rotation' of the carrier 323.

A pin joint 32S is provided at the bottom of the carrier 323, and that pin joint is connected to one end of a connecting rod 334. The other end of that connecting rod is secured to the plunger 332 of a solenoid 330.V That solenoid is xedly secured to a small plate 331 which, in turn, is xedly secured to the vertical plate 148; and the plate 331 extends downwardly from the plate 48.

The numeral 336 denotes a horizontal platform which projects outwardly from the front face 36 of the currency identification device, and that platform serves to support a bill which is to be tested by that device. A bracket 338 of attractive appearance surrounds and helps support the platform 336; and the upper edges of that bracket project upwardly 'beyond the upper face of that platform. Those edges help a patron aline a bill with the opening 38 in the front plate 36, and they also make certain that the patron will move the leading edge of that bill far enough through that opening to be intermediate the leading edges of the belts 270 and 272.v

ri`he numeral 370 denotes a gate which is generally flat but which has a horizontally-directed ear 372 adjacent the top thereof. That gate is thinner than the U-shaped plate 34, and that gate is narrower than the horizontal distance between the upstanding arms of that plate. As a result, that gate can lit within the space dened oy the arms and by the closed end of the U-shaped plate 34. The wall portion 96 of the platen 94 overlies part of the rear face of that gate but does not obstruct movement of that gate; and the front plate 36 overlies substantially all Yof the front face of that gate but does not obstruct movement of that gate. As a result, the gate 370 is held in a Vertical position by, but is free to move vertically relative to, the front plate 36 and the wall portion 96 of the platen 94.

The gate 370 has'an opening 374 therein, and that opening is made wide enough to accommodate a bill when that bill has its long axis perpendicular to the plane of that gate. That openingv will normally be set in register with the opening 38k in the front plate' 36, as shown by FIG. 14; but that opening can be moved downwardly out of register with the opening 38, as shown by FIG. l5. A switch 362 is mounted on the platen 94 adjacent the front of that platen, and the actuator 364 of that switch extends to, and is hooked through, an opening in the ear 372 on the gate 370. Whenever the gate 370 is in the raisedposition shown by FIG. 14, the movable contact oi that switch will engage the left`hand fixed contact of that switch, as shown by FIG. 18; but whenever that gate is in the lowered position shown by FIG. 15, that movable contact will engage the right-hand ixed contact of that switch.

A solenoid 344 is supportedon and carried by the mounting bracket 216; and, as shown by FIG. 1, that solenoid is at one face of that `bracket While the switch 2.32V is at the other face of that bracket. The plunger 346 of the solenoidV 344 is disposed adjacent the upper end of a rocker arm 350 which is rotatably supported v lower end of that rocker arm is secured `to one end of a connecting rod 352 by a pin joint 351.

The other end of that connecting rod is connected to an' ear`on a bracket 354'by means ofa pin joint 355. That bracket is rotatably mounted on the pivot 20;@ which is held by the vertical plates 126 and 134i; and that bracket has an extension 353 which underlies the ear 372 on'the gate 370. A helical extension spring 356hasone end thereof hooked through an opening in the bottom` of the rocker arm 350'and has the other end thereof hooked around a pin 357'4 that is secured to the mounting'bracket 21). The'spring 356 urges thev rocker arm 350 for rotation in the counter clockwise direction, and also urges theconnecting rod 352'or movement to the right, in' FIG. 2. Such movement of that connecting rod'wil'l rotate thev U-shaped bracket 354 to the dotted-line, raised position of FIG. 15. However, that sping can'yield to permit that bracket t0 move to the solid-line, loweredposition in'FIG. 15. When the bracket- 354 is in'its raised position itr will hold the ear 372 ofthe gate 370 up against the adjustable stop 360, shown inthe form of a machinel screw. That stop is suitably held by a bracket 361 which is secured to and supported by the vertical plate` 13). A nut 363 can" be tightened against the bracket 361 to prevent rotation of/th'e'stop 360, and'thus prevent accidental shiftingv of the vertical position of that stop. When the bracket '354 is in its lowered position, the gate `376B will be'free to movedownwardly and sense for the presence or absence'ofa thread, tape or'other member attached to the inserted bill.

The b'racket361l. is L-shaped, and it has an opening in .the horizontally-directed position at the top thereof. That openingY is in vertical registry with the 'openings 55'an`d 123, respectively, in the platens 5t) and 94; and it'also is'in vertical registry with the cut-away portions of the U-shaped brackets 191 and 196. Further, that opening will be in vertical registry with a cut-away portion. ofthe ear 372' on the gate 370 and with a cut-away portion' of the extension 353 on the bracket 354. A lamp! 366 is mounted within the opening in the bracket 361, and a light sensitive cell 363 is mounted below, but in registry with the opening 55 in platen 50; As a result, the lightbeam from that lamp will normally strike that lightsensitive cell. That cell is of'the type which constitutes a low resistance when light is striking it, but that constitutes a high resistance when light does not strike it.'

The numeral 426 in FIG. 19 denotes a unit which includes a tuned amplifier and' a control element; and that unit can be identical tothe similarly-numbered unit disclosed in copending Smith et al. application Serial No. 849,066 for Currency Detectors which was tiled on October 27, 1959. The numeral 428 denotes the coil of a relaythathas contacts 438, 439 and 44u, the numeral 446 denotes the coil of a relay that has contacts 442 and 444, the numeral-462 denotes the coil of a relay that has contacts 454, 456, 458 and 460', and the numeral 476 denotes the coil of a relay that has contacts 470, 472` and 474; Those relays' are part of a relay chain which is similar to a relay chain, in the said copending Smith et al. application, that has similarly-numbered relays. They numeral 520`denotes the coil of a relay that has contacts 522, S24 and 526, the numeral 528V denotes the coil of a relay that has contacts 530,

V532 and 534, the numeral 544 denotes the coil of a relay that has contacts 550, 552, 554, 556, 553, 560, 562, 564 and 566, andthe numeral 573 denotes the coil of a relay that has contacts 584, 536 and 558. The parts of the circuit shown in FGS. 18 and 19 are interconnected by the conductorsk 452, 490, 436, 434, 429, 594, 496, 560, 498, 604, 596, 592 and 662. Those parts of the circuit'can' be connected to a suitable source of A.C. voltage by the plug'41tl which has prongs 412 and 4M.

The numeral 380 denotes'a step-down transformer that provides `low voltager forY the lamp 36d. The terminals of the primary winding of that transformer are connected to the'conductors 48S and 450 in FiG. 18 by conductors 453 and 451, respectively. Since both of those conductors are directly connected to the prongs of the plug 416,

the lamp 366 will be energized whenever that plug is held. t within `an appropriate electrical socket.

The numeral 332 denotes the coil of a relay, and that coil can be energized toopen a pair of normally-closed contacts 384. One ofthose contacts is connected to conductor e36 by conductor 628 while the other of those contacts isV connected to conductor &4. A conductor 4132 has one end thereof connectable to one terminal of j a source of DC., and has Vthe other end thereof connected to one terminal of the light-sensitive cell 368 by resistor 383 :and relay coil 382. A conductor 404 can connect the other terminal of the light-sensitive cell 368 `to the other terminal of that source of 11C. Forrconvenience. and simplicity, that source of D.C. can be the power Y As that armature opens those contacts, it will be held against further rotation, and thereuponithemotoriwill stall and will cause the armature tocontinue to hold they contacts 6de open as long as the motor is energized.

stored to normal position by a returning spring. yIn one When that motor is Vde-energized the output shaft of the Y,moto-r, and the actuator mounted thereon, Will be repreferred embodiment of the present invention, the motor Y of the relay 624 runs about thirty seconds before theY actuator on the output shaft ythereof opens the contacts 6%. Such a length of: time is many times longer than the normal time cycle of the bill-transporting device, and yetit is short yenough'to prevent undue. run-ning of lthe motorV of that bill-transporting device. l One commercially-available timer of thisY type is made by the Struthers .Dunn Company.

v./henever the bill-transporting device shown in FIG. l

' is at rest, the spring 222 will pull the connecting rod 214 to the right, as shown by FIG. 3, and will thus cause the U-shaped bracket 296 to rotate the VU -shaped bracket 196 to its raised position. As' a result, whenever the billtransporting device of FlG. 1 is at rest, thev pivot 202 and the timing belt pulleys Ztli thereon will bein raised position. This; means thatA the Vleading edgesof theV timing belts Zi'will be above, and out of engagement with, the

- leading edges of the timing vbelts 272; and this is desirable because it facilitates the ready/'introduction of between those leading edges. w

j At this time, the spring 35o will pull the rocker arm 35@ in the vcounter clockwise direction, and will thus pull s bili -V the connecting'rod 352 to the position shownby FIG. 2.

That connecting rod will hold the U-shaped'bracket 354 the raised position shown by dottedlines in PEG. *15,V

fand will thus hold the 'gate' 370 iny',tlieraised position shown by dotted` lines in FIG. l5. This means that 'the opening Y37d in that gate will bealined' with the openingy .3S-in the front plate 36 and will lalso 'be alinedwith the;V i space between platens 59 and 94. Asaresult, La'piatron lb ment with the magnetic head 244, However, Whenever that solenoid is energized, its plunger 332 will be retracted and will act through the connecting rod 33d and l the carrier'323 to orcethe soft-faced roller 326 upwardly toward the magnetic head. That soft-faced Vroller is readily deformable -by the forces exerted by the solenoid 330; and, as a result, that roller will force an inserted bill up against the face'of the magnetic head 244 and then deformitself to assume a'cofncave configuration at the upper face thereof. This assumption of a concave con! figuration is desirablebecause it Willbow the inserted bill around the face of the magnetic head; and that bowing action is important in assuring full registration of the bill with the air gap of ythat magnetic head, and in tending to smooth out wrinkles in the bill. The sott-faced roller 326 can rotate readily relative to the pivot 324, and that ready rotation will minimize the frictionall drag which is applied to the inserted bill during the sensing of that bill.

Whenever the'currency detectorprovided by the 'presont invention is'at rest, the electrical component-s of that currency detector will be in the positions shown by FIGS. 18 and 19. At such time, the terminal 412 `oi the plug 416 'will be directly connected to the xed contactsV of the normally-open switches 274, Zi and 2&6 .by conductors 452 and t?, ,to the movable contacts of the normally `opencontacts 47@ and 472 adjacent relay' coil 476 by conductor 452 and junctions 598 and 468, to the movable contact of the normally open contacts j536 adjacent the relay coil V57S by conductor 4S2and junction 598 and conductor Si? and junction Si and conductor 580, y Vto one terminal ci 'transformer 3S@ by conductors 452, 45t? and 452i, 'and to the movable contact of the normally-Y closed contacts 524 adjacent the relay v,coil 520 by the 'conductor 452, the junction 5%, the conductor 4&0, the

junction 481 andthe conductor 432. The terminal 412 will be connected tot the movable contact of the switch I i 290 bythe conductor i452 and junction 5% and conductor 430 vand junction ddl and conductor 432 and the normally-closed contacts-524 .adjacent the relay coil 52@ and conductor 434; and that terminal will be connected VtoV theV iixedfrelay Contact 384 bythe movable and-upper Y 'txedfcontacts of the switch 29tl'andby conductors 436 of 'a billfi-tltl'between the leading edges ofthe upperfand lower Vtiming belts 27S and2ri2. The upstanding siglesV and end of the bracket 338 Will'help the patron eect i ,proper placement of that bill. Y

that bill moves into register with the openings 55 and 123', v

and 628. VIn addition, that vterminalV will be connected to the fixed contact 53) adjacent the relay coil 528 by conductor 452, junction 59S, conductor/i3d, junction ESL conductor-'432, contacts 524, conductor 43d, the movable Y and upper iixed contacts ofthe switch 29@ and conductor VV436. The movableV relay contact 334 will be connected to the terminal 414i of the plug 410 by conductor S94,

rectiiier Sail, serially-connected resistor 538 and relay coil S23, junctions 542, S72, 5&2, and 5%, and conductor 49). `At this time, a patron can readily insert the leading edge respectively, inthe upper and lower platens Eiland-Sait l will interrupt the beam of light that normally passes from can easily introduce theleading edge of Va bill through the openings 38 and 374 and into thefspace between the platens 59 and 94. i f" 'Alcoi at 'this time, `a springwithinthesolenoid '333 holdsthe plungerSZY-of thatsolenoid in the extended `position shownby FIG. 2. That plunger Will-'act through. l thefconnecting rod 334 and throughthe 'carrier 32310 t .hold the Sofi-faced roller 325 below andv out of engage-V the lamp 366 to the light-sensitive cellv 36S. ',Thereupon,

the resistance of that cell will increase to the point Where the coil '382 will be unable to hold therelay contacts 384 apart; andthose contacts willV close and energize thefrelay coilSZS via conductor SZVjunction" 5%, conductor 48u,

junction 481, conductor 432, contacts 524, conductor 434, l. the movable and upper fixed contactsof switch 29), conductors-436 and 62S, now-closed relay contacts-38e., con-l dumm-594i, rectiiier 54h, kserially `:onnected resistor 33 and 5%,-

and relaycoil v`528, .junctionsV 542, S72, 552, K and conductor 49?. AsV currentiiowsthrough the serially-connectedresistor 53.8 and relaycoil 52S, Vthe condenser 536 willbecome charged'. The current will' continue to KVAHow throughV the V seriaily-connecte'd kresistor VS35i and relay coil'SZS as long as any part ofthe billis in register.,V with the openings 55 and 123, respectively, in the platens As the leading edge of 50 and 94, but after that bill has been moved far enough in the forward direction to move its trailing edge beyond those openings, the cell 36? will again receive light from the lamp 366 and the coil 382 will separate the relay contacts 384. Thereupon the condenser 536 will discharge through the serially-connected resistor 538 and relay coil 528 to keep that coil energized for a predetermined period of time. The duration of that period of time will be determined by the values of the resistor 538 and of the condenser 536; and that period of time will preferably be less than one half of a second. The overall result is that the relay coil 52S will be energized and will be kept energized for a short, but adequate period of time.

The energization of the relay coil 528 will enable that coil to shift the movable contact 532 down into engagement with the xed contact 530. That shifting will energize the solenoid 230 via conductor 452, junction 59S, conductor 480, junction 481, conductor 432, normally closed contacts 524, conductor 434, the movable and upper iixed contacts of switch 290, conductor 436, contacts 536 and 532, junctions 570 and 609, conductor 429, junction 482, normally-closed timer contacts 666, junction 464, solenoid 239, junction 486, conductor 483 and conductor 490. Thereupon the solenoid 230 will retract its plunger 223 and rotate the rocker arm 224 in the clockwise direction in FIG. 3, thereby shifting the connecting rod 214 toward the front plate 36. Such shifting of the connecting rod 214 will permit the upwardly extending arm 267 of the bracket 2,06 to move forwardly `and release the holding force which it normally applies to the U-shaped bracket 196. At this time, the springs 268 will act upon the U-shaped bracket 196 and rotate that bracket in the counter clockwise direction about the pivot 19S; and this means that the pivot 292 with its timing belt pulleys 224 will be forced to move downwardly. Those pulleys will cause the leading edges of the upper timing belts 27@ to press the leading edge of the inserted bill into intimate engagement with the lower timing belts 272.

As the connecting rod 214 shifted forwardly toward the front 'plate 36, that rod moved the switch actuator 234 far enough in the clockwise direction in FIG. 3 to close the normally open switch 232. The closing of that switch completes a circuit through the phase winding of the motor 186 via conductor 452, junction S98, conductor 480, junction 481, conductor 432, contacts 524, conductor 434, the movable and upper Xed contacts of switch 296', conductor 436, contacts 536 and S32, junctions 570 and 660, conductor 429, junction 482, timer contacts 666, junction 434, switch 232, capacitor 139, the phase winding of the motor 18S, junctions 492, 494, and 486, and conductors 48S and 496. The closing of the switch 232 also completes a circuit through the main winding of the motor 18S via conductor 452, junction 59S, conductor 456, junction 481, conductor 432, contacts 524, conductor 434, the movable and upper xed contacts of the switch 290, conductor 436, contacts 536 and 532, junctions 570 and 600, conductor 425%, junction 482, timer contacts 666, junction 434, switch 232, conductor 496, contacts 558 and 569, junction 576, conductor 49S, the main winding of the motor 18S, conductor 560, contacts 554 and 552, junctions 574, 572, 562 and 590, and conductor 496. As a result, the motor 188 will start rotating in such a direction as to cause the timing belts 276 and 272 to start moving the inserted bill 400 toward the rear of the bill-transporting device.

It will be noted that the initial connection of the solenoid 236 and or the motor 18S to the terminal 411.2 of the plug 416 is through the relay contacts 530 and 532; and this means that a further connection must be established because the time constant of condenser 536 and resistor 538 is less than one half of a second and hence the contacts S30 and 532 can separate in less than one half of a second after the trailing edge of the bill has moved beyond the openings 55 and 123. The bill-actuated switches 274 and 278 provide that further connection for the solenoid i8 230 and the motor 188 when the timing belts 276 and 272 move the leading edges of the inserted bill 466 into engagement with the actuators 276 and 280 of those switches.

As the inserted bill 466 causes the actuators 276 and 286 to close the switches 274 and 278, a circuit will be established via conductors 452, and 456, switches 274 and 278, conductor 562, conductor 429, junction 482, timer contacts 606, junction 464, solenoid 236, junction 486, and conductors 466 and 496. Those switches will also complete a second circuit via conductors 452 and 45t), switches 274 and 278, conductor 502, conductor 429, junction 462, timer contacts 666, junction 484, switch 232, capacitor 190, the phase winding of the motor 18S, junctions 492, 494 and 486, and conductors 483 and 490. Those switches also complete a third circuit via conductors 452 and 456, switches 274 and 278, conductor 562, conductor 429, junction 482, timer contacts 666, junction 484, switch 232, conductor 496, contacts 55S and 560, junction 576, conductor 493', the main winding of the motor 168, conductor 566, contacts 554 and 552, junctions S74, 572, 582 and 599, and conductor 426. The overall result is that the bill-actuated switches 274 and 278 keep the solenoid 236 and the motor 15S energized; and those switches will keep that solenoid energized as long as either of them remains closed. Further, those switches will keep the motor 186 energized as long as the contacts 55S and 566 and the contacts 554 and 552 remain closed and either of the switches 274 and 278 remains closed. Consequently, although the relay coil 52S will become deenergized within one half of a second after the trailing edge of the inserted bill moves beyond the openings 55 and 123, the solenoid 236 and the motor 166 will continue to remain energized.

The timing belts 270 and 272 will continue to move the inserted bill 400 toward the rear of the bill-transporting device; and the leading edge of that bill will soon engage and move the actuator 284 of the switch 282 and thereby close that switch. Thereupon a circuit will be completed via conductors 452 and 45t), switches 274 and 278, conductor 502, conductor 429, junctions 660 and 576, contacts 564 and 566, junction 568, conductor 664, switch 282, solenoid 330, junctions 494 and 486, and conductors 488 and 490. The resulting energization of the solenoid 33t) will retract the plunger 332 and pull the connecting rod 334 toward the rear of the bill-transporting device, thereby rotating the carrier 323 in tthe counter clockwise direction in FG. 2. That rotation causes the soft-faced roller 326 to engage the lower face of the inserted bill 460 and to press the upper face of that bill against the convex face of the magnetic head 244. The plunger 332 will fully seat itself, and it will thereby minimize the number of stray magnetic flux lines generated by the solenoid 336. As that plunger fully seats itself, it will apply such a strong upwardly-directed force to the roller 326 that the uppermost portion of the face of that roller will not only deform to conform to the convex curvature of the face of the magnetic head 244 but will also force that magnetic head to move upwardly. The spring 246 will yield to` permit the mounting 242 for the magnetic head 244 to move upwardly and thereby permit the magnetic head to move upwardly. That spring will, however, exert a downwardly-directed force on the magnetic head 244 which is strong enough to urge the face of that magnetic head into intimate engagement with the inserted bill 466 and to keep the uppermost portion of the face of the roller 326 deformed.

The actuator 284 for the switch 282 is set far enough away from the front plate 36 to enable the leading edge of the bill 466 to pass between the magnetic head 244 and the soft-faced roller 326 before that leading edge moves the actuator 234. As a result, the magnetic head 244 and the roller 326 can not cause the leading edge of the bill 466 to crumple or roll up. However, the actuator 284 is set close enough to the front plate 36 to enable the lead- 

